51232444040 has 32 divisors (see below), whose sum is σ = 115353569880. Its totient is φ = 20478653952.

The previous prime is 51232444019. The next prime is 51232444051. The reversal of 51232444040 is 4044423215.

51232444040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 31333956196 + 19898487844 = 177014^2 + 141062^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51232443994 and 51232444012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389579 + ... + 504218.

Almost surely, 2^51232444040 is an apocalyptic number.

It is an amenable number.

51232444040 is an abundant number, since it is smaller than the sum of its proper divisors (64121125840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51232444040 is a wasteful number, since it uses less digits than its factorization.

51232444040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895241 (or 895237 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 51232444040 its reverse (4044423215), we get a palindrome (55276867255).

The spelling of 51232444040 in words is "fifty-one billion, two hundred thirty-two million, four hundred forty-four thousand, forty".